9 citations · 13 across the 3 of their papers we have counts for
4 papers · 1 filter
Asymmetric Dark Matter From Scattering
Deep Ghosh
In dark matter (DM) cosmology, the central question is how the present-day density of DM is generated from some initial conditions in the early universe. Different production mecha…
Cosmology of complex scalar dark matter: interplay of self-scattering and annihilation
Avirup Ghosh, Deep Ghosh, Satyanarayan Mukhopadhyay
The cosmology of a standard model (SM) gauge singlet complex scalar dark matter (DM), stabilized by a reflection symmetry, is studied including all renormalizable interactions that…
Revisiting the role of CP-conserving processes in cosmological particle-antiparticle asymmetries
Avirup Ghosh, Deep Ghosh, Satyanarayan Mukhopadhyay
We point out qualitatively different possibilities on the role of CP-conserving processes in generating cosmological particle-antiparticle asymmetries, with illustrative examples f…
Asymmetric dark matter from semi-annihilation
Avirup Ghosh, Deep Ghosh, Satyanarayan Mukhopadhyay
We show that a general semi-annihilation scenario, in which a pair of dark matter (DM) particles annihilate to an anti-DM, and an unstable state that can mix with or decay to stand…